Just stick with the electrolyte packs and an on court snack of your choice and lots of water and you will be good to go.

a wildcard - I bring mustard packs. It sounds weird but I have dealt with nasty cramps in my legs now and then and if I feel one coming I eat a pack or 2 and the vinegar in it really helps me.

I'd eat an hour before playing, and have 1 electrolyte pack as well. Bring a ton of water with another elecotrolyte pack mixed in.

I play in florida in extreme heat and humidity and this works for me. the BCAAs work for me as well, but are not a necessity. I take them because I do leangains and need to supplement protein throughout the day. Ramon and I both live here and play in this environment.

PP, I played a match yesterday in the hottest weather I have ever played in. The forcast was only 96 so we scheduled our match but it actually got up to 106 and there was absolutely no breeze whatsoever. I did have a pedialyte drink and some pickle juice before leaving fot the courts but today I am really feeling that match.